Problem related to gravitational force of magnitude
Two objects attract each other with a gravitational force of magnitude 9.2*10^-9 N when separated by 19.8cm. If the total mass of the object is 5.09kg, what is the mass of each?
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The temperature rises and CO2 vaporizes. If the pressure in the tank is not to exceed 111 bar, what should be the maximum allowable temperature in the tank?
High voltage power transmission lines are made out of aluminum with a crosssectional area of about 4.4 x 10-4m^2. These lines typically carry currents of 1.3-A.
Water flows at 50oC inside a 2.5-cm-inside-diameter tube such that hi= 3500 W/m2 oC. The tube has a wall thickness of 0.8 mm with a thermal conductivity of 16 W/m2 oC. The outside of the tube loses heat by free convection with ho = 7.6 W/m2 oC.
What is the maximum allowable hole diameter? Assume Y = 1.4. Note, given more than one choice of material data, choose conservatively.
Hot combustion gases enter a gas turbine at .8Mpa and 1500 K at a rate of 2.1 kg/s and exit at .1 Mpa and 800 K. If heat lost from the turbine to the surroundings at a rate of 150 kj/s find the power output of the gas turbine using constant and va
Steam enters a diffuser at 20 psia and 240oF with a velocity of 900 ft/s and exits as saturated vapor at 240oF and 100 ft/s. The exit area of the diffuser is 1 ft2.
A rigid tank whose volume is 0.5 m3, initially containing ammonia at 20oC, 1.5 bar, is connected by a valve to a large supply line carrying ammonia at 12 bar, 60oC.
How fast would you have to spin a single circular loop with a radius of 1cm to get the same voltage?
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